# US 5,349,393 A · Light-transmitting elastomeric suction lens

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- Number: US 5,349,393 A
- Document ID: US5349393A
- Status: Granted
- Kind: A
- Application number: 08/069,395
- Filed: 1993-06-01
- Granted: 1994-09-20
- Earliest claimed: 1993-06-01
- Inventors: James P. Kreft
- Web page: https://patentgrep.com/patent/US5349393A

## CPC

- G02C 7/06: bifocal; multifocal {; progressive (G02C7/041 takes precedence)}
- G02C 7/086: {Auxiliary lenses located directly on a main spectacle lens or in the immediate vicinity of main spectacles}
- G02C: SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES (trial frames for testing the eyes A61B3/04; goggles or eyeshields not having the same features as spectacles A61F9/00)

## Abstract

An ophthalmic lens is disclosed for changing the focal point of a light-transmitting element. Formed from a light-transmitting silicone, the lens has a concave surface for creating suction when applied to a smooth surface. An exposed surface opposes the concave surface for providing a specific diopter. The lens quickly and impermanently attaches with finger pressure to a desirable smooth surface such as the lens of eyeglasses.

## Claims

### Claim 1

An ophthalmic lens for attachment to a smooth surface comprising:
a lens body formed of a light-transmitting elastomeric material;
said lens body having a contacting concave surface for contacting the smooth surface to create suction with the smooth surface; and
said lens body having an exposed surface opposite said contacting surface for creating a predetermined relationship with said contacting surface and said exposed surface for providing a specific diopter.

### Claim 2 (depends on 1)

The lens of claim 1 wherein said light-emitting elastomeric material is a rubber.

### Claim 3 (depends on 2)

The lens of claim 2 wherein said rubber is a silicone.

### Claim 4 (depends on 1)

The lens of claim 1 wherein said exposed surface is a convex surface.

### Claim 5 (depends on 4)

The lens of claim 4 wherein said predetermined relationship provides a magnifier.

### Claim 6 (depends on 1)

The lens of claim 1 wherein said contacting surface includes a peripheral skirt for additional adhesion.

### Claim 7

An ophthalmic lens for attachment to a smooth surface comprising:
a lens body formed of a light-transmitting elastomeric material;
said lens body having a contacting concave surface for contacting the smooth surface, said contacting surface having a radius to create suction with the smooth surface; and
said lens body having an exposed surface opposite said contacting surface having another radius for creating a predetermined relationship with said contacting surface and said exposed surface for providing a specific diopter.

### Claim 8

A device for ophthalmic use comprising in combination:
a lens having a predetermined prescription through which light rays transmit to the eye; and
a lens body formed of a light-transmitting elastomeric material;
said lens body having a contacting concave surface for contacting the smooth surface, said contacting surface having a radius to create suction for conformably attaching to said lens; and
said lens body having an exposed surface opposite said contacting concave surface, said exposed surface having another radius for creating a predetermined relationship with said contacting surface and said exposed surface for providing a specific diopter, thereby refracting the light rays transmitted through said lens to the eye.

### Claim 9 (depends on 8)

The device of claim 8 wherein said light-transmitting elastomeric material is a rubber.

### Claim 10 (depends on 9)

The device of claim 9 wherein said rubber is a silicon.

### Claim 11 (depends on 8)

The device of claim 8 wherein said exposed surface is a convex surface.

### Claim 12 (depends on 11)

The device of claim 11 wherein said predetermined relationship provides a magnifier.

### Claim 13 (depends on 8)

The device of claim 8 wherein said contacting surface includes a peripheral skirt for additional adhesion.

### Claim 14 (depends on 13)

The device of claim 13 further comprising a means for changing focal point of said lens body.

### Claim 15 (depends on 14)

The device of claim 14 wherein changing means include a mounting device for adding a lens near said exposed surface of said lens body.

### Claim 16 (depends on 15)

The device of claim 15 wherein said mounting device includes bolts.